Finding the Fourth Proportional to 68,859.13, 103,305.97 and 19,611.13
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Solution
The fourth proportional to 68,859.13, 103,305.97 and 19,611.13 is: 29,421.61
Step by Step Solution
- Step 1: Write the proportion equation
68,859.13 : 103,305.97 = 19,611.13 : x - Step 2: Convert to fraction form
68,859.13/103,305.97 = 19,611.13/x - Step 3: Cross multiply
68,859.13x = 103,305.97 × 19,611.13 - Step 4: Simplify right side
68,859.13x = 2,025,946,241.89 - Step 5: Solve for x
x = 2,025,946,241.89/68,859.13 - Step 6: Final answer
x = 29,421.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.